RFR(XS): 8032386: Argument auto-correct suggests arguments which are constant in the binary

[Vladimir Kozlov]

Gilles,

Please look on next changes 8027314 which was just pushed:

http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/234d576115b5

The message for develop flags in product VM is changed to:

Error: VM option 'PrintMethodFlushing' is develop and is available only 
in debug version of VM.

Regards,
Vladimir

On 1/21/14 6:02 AM, Gilles Duboscq wrote:
> Hello,
>
> As i wrote in the bug report [1]:
> With a product build (note that PrintMethodFlushing is a 'develop' flag):
>
>> java -XX:+PrintMethodFlushing
> Unrecognized VM option 'PrintMethodFlushing'
> Did you mean '(+/-)PrintMethodFlushing'?
> Error: Could not create the Java Virtual Machine.
> Error: A fatal exception has occurred. Program will exit.
>
> This will probably confuse users.
>
> As a fix, I propose to ignore arguments which are constant in the
> binary while trying to find a fuzzy match [2]. I think the policy is
> to act as if constant options didn't exist in product builds so this
> is probably better than telling the user that this option can not be
> set in the current build.
>
> -Gilles
>
> [1] https://bugs.openjdk.java.net/browse/JDK-8032386
> [2] http://lafo.ssw.uni-linz.ac.at/fuzzy-constant.diff
>